Donald School Journal of Ultrasound in Obstetrics and Gynecology

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VOLUME 2 , ISSUE 3 ( July-September, 2008 ) > List of Articles


Cerebral Hemodynamics and Fetal Behavioral States in IUGR Fetuses

Graziano Clerici, Gian Carlo Di Renzo

Keywords : Cerebral hemodynamics,Fetal behavioral

Citation Information : Clerici G, Renzo GC. Cerebral Hemodynamics and Fetal Behavioral States in IUGR Fetuses. Donald School J Ultrasound Obstet Gynecol 2008; 2 (3):76-79.

DOI: 10.5005/jp-journals-10009-1067

License: CC BY-NC 4.0

Published Online: 01-09-2009

Copyright Statement:  Copyright © 2008; The Author(s).


The aim of this study was to evaluate the hemodynamic patterns in the proximal (M1) and distal (M2) portions of the middle cerebral artery (MCA) during different fetal behavioral states (FBSs) in healthy and IUGR fetuses. After identification of the FBS in 20 normal (group A) and 8 IUGR (group B) singleton pregnancies (36- 40 weeks), flow velocity evaluation was performed on the M1 and M2 segment of the MCA during “quiescence” (FBS 1F) and “activity” (FBS 2F). In the group A, a statistically significant decrease of impedance to flow values was identified in both segments of the MCA during “activity”. In the group B not statistically significant differences were identified in the impedance to flow values during different FBSs. For each segments of MCA it was found significant lower impedance to flow values in the group B for all FBSs. The mean fetal heart rate during “quiescience” was significantly lower than during “activity” in both groups. The results of this study provide evidences of the influence of different FBSs on fetal cerebral hemodynamic patterns. These information should be considered in the evaluation of fetal cerebral hemodynamics.

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